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Patents > CPCs : CPC B64C23/005 or CPC B64C25/62

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None (396) · Seine (7) · Nord (5) · California (4) · Seine-et-Oise (3) · Aisne (3) · New York (3) · London (3) · Indiana (3) · Chicago (3) · Minnesota (2) · Maine-et-Loire (2) · New York county (2) · Paris (2) · Gironde (2) · Pennsylvania (2) · Meurthe-et-Moselle (2) · Birmingham (2) · the Bronx (2) · Villers-Cotterêts (2)
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None (174) · airplane (140) · propulsion (72) · frame (69) · hybrid (56) · helicopter (55) · propeller (45) · landing (45) · navigation (42) · design (40) · stability (37) · Chassis (35) · Wheels (34) · Takeoff (31) · propellers (29) · ascension (26) · lift (23) · construction (21) · wings (21) · LTA (19)
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None (395) · Patent FR-1909-410140 (5) · Patent DE-1909-220044 (2) · Patent FR-1915-525800 (2) · Patent FR-1909-404954 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent FR-1908-407090 (2) · Patent AU-1916-630 (2) · Patent AT-1909-40038 (2)
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None (143) · None (21) · Armengaud jeune (14) · Victor J. Evans (11) · Munn & Co. (8) · W. P. Thompson & Co. (6) · J. Bonnet-Thirion (6) · Schwab (6) · J. Germain (6) · E. Bletry (6) · Marks & Clerk (6) · G. de Mestral et F. Harlé (6) · Charles Dony (5) · Chassevent (4) · Boult, Wade & Tennant (4) · Paul Caquet (4) · J. Fayollet (4)
National tech categories:
FR 6.4 (164) · None (163) · USPC 244/6 (47) · USPC 244/66 (20) · USPC 244/12.1 (15) · USPC 244/80 (7) · DE 77h.9 (7) · USPC 244/100R (6) · USPC 244/60 (6) · DE 77 (5) · USPC 244/139 (5) · USPC 244/35R (5) · USPC 244/48 (4) · USPC 244/104CS (4) · FR 6.3 (4) · USPC 244/51 (3) · DE 77h.5 (3) · USPC 244/65 (3) · USPC 244/104R (3)
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Cites these patents:
None (475)
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